Look for a hdmi input via the menu/ video /source button on the remote.[different manufactuers list them differently] if you have multiple input selections on the display,scroll thru each one,wait 2or3 seconds between each input and see if your picture comes on.also check the hdmi connection
wg

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According to the models you provided it looks like the DVD player has only HDMI out and the sound system you have does not directly support that. I would suggest purchasing a HDMI audio extractor so that you can covert the digital signal from your blu-ray to an analog signal. However, there are other ways of doing this. If you provide me with your TV that you use I might be able to advise another work around.

Go on google and look for "hdmi audio converter" or "hdmi audio Extractor".

Make sure to look at review to determine the quality of the product and decide what device fits your budget.

I appreciate that you did an isolation steps where the fault maybe by running a HDMI straight from your your Direct TV box.We could further steps by following mentioned below

1. Please make sure your connecting the HDMI cable on the right port2.Please make sure you are using the HDMI cable compatible to the system.also try the supplied cable from Bose.3. If still does not work,please contact the manufacturer or contact the store where the item was purchased

You need to assign the HDMI input(s) to the functions they represent, using the Front Panel Tuning/Preset control...

If you connect a video component to an HDMI input, you must assign that HDMI Input to an input selector in Setup.
For example, you could assign the “DVD” setting to “IN1”, and assign the
“CBL/SAT” setting to “IN2”.

Likewise if you use digital audio inputs...

Assigning the Digital Input
If there’s no sound, press the [DIGITAL INPUT] button repeatedly until sound is heard. The digital input is now properly assigned.
If you connect your DVD player to the AV receiver’s COAXIAL 1 DIGITAL IN, and your cable/satellite receiver
to the COAXIAL 2 DIGITAL IN, as shown, it’s not necessary
to assign the digital input.

If you are using the hdmi hookup, then you will also need to use either a composite or coaxial cable for the sound. Yes I know this "sounds" crazy, but I had the same problem for both the cable and bluray set ups with this receiver. I thought the hdmi would work for both the picture and sound but for some reason the hdmi only works for the picture with this receiver. I bought mine from Crutchfield and without their tech service I would never have guessed this was the problem. (I never would have purchased this receiver if I knew this was the design problem/issue.) Good quality composite cables for the sound works just fine.

Hi, You have connected from PC to TV right???1.To get the video you have to connect to TV2.Please take a separate cables for to listen audio and to watch video, for audio connect cables from DVD Player to Home Theater you can listen the audiofor video please connect the HDMI video to TV Where You can enjoy both.

Use the component. If your tv is running correctly it should not lose quality through the component system. HDMI is simply a High Def Multiple Interface, meaning that it combines the Visual with the Audio signal in the same cable. Refer to your documentation on your sattelite box to see if there is a solution. But remember that the HDMI may be carrying what the actual broadcast sound is as not many if any channels are transmitted in 5.1 dts.

Run a regular RCA type audio cable from your TV audio out to your Home Theatre audio in. That is what I have done recently with my Samsung LCD and Home Theater. You then have to put your Home Theater on Aux 1 or Aux 2 to get the sound from TV. Ensure your TV's volume is off.
Kurtis

Firstly connect your home theatre outpu HDMI to HDMI input1 on the TV. Then connect the PS£ HDMI to the other HDMI input on the TV. Now connected the optical cable from the PS3 to the optical input of the home cinema system. Your should now have surround sound from the PS3 and DVD.